M41T62_06 STMICROELECTRONICS [STMicroelectronics], M41T62_06 Datasheet - Page 33

• Manufacturer Part Number: M41T62_06
• Description: Serial Access Real-Time Clock with Alarms
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M41T62/63/64/65
Table 15.
1. Externally supplied if using the QFN16 package. STMicroelectronics recommends the Citizen CFS-145
2. Load capacitors are integrated within the M41T6x. Circuit board layout considerations for the 32.768kHz
3. Guaranteed by design.
4. R
Table 16.
1. Reference value. T
Figure 25. Bus timing requirements sequence
Symbol
SDA
SCL
V
t
(1.5x5mm) and the KDS DT-38 (3x8mm) for thru-hole, or the KDS DMX-26S (3.2x8mm) for surface-mount,
tuning fork-type quartz crystals.
KDS can be contacted at [e-mail] or http://www.kdsj.co.jp.
Citizen can be contacted at [e-mail] or http://www.citizencrystal.com.
crystal of minimum trace lengths and isolation from RF generating signals should be taken into account.
STA
C
C
Sym
STA
R
S (max)
C
f
g
d
O
S
L
tBUF
Oscillator start voltage
Oscillator start time
XIN
XOUT
IC-to-IC frequency variation
= 65k for T
Resonant frequency
Series resistance (
Load capacitance
P
Crystal electrical characteristics
Oscillator characteristics
A
Parameter
A
= 25°C, V
S
= –40 to 85°C and oscillator start-up at 1.5V.
tHD:STA
Parameter
CC
tR
T
A
= 3.0V, CMJ-145 (C
= –40 to 70°C, oscillator start-up at 2.0V)
tLOW
tHIGH
(1)
tF
(1)(2)
Conditions
V
10 seconds
CC
= 3.0V
L
tHD:DAT
= 6pF, 32,768Hz) manufactured by citizen.
tSU:DAT
Min
–10
1.5
Min
SR
DC and AC parameters
tSU:STA
32.768
Typ
12
12
Typ
6
tHD:STA
75
Max
+10
Max
1
(3)(4)
P
AI00589
tSU:STO
Units
Unit
ppm
kHz
pF
pF
33/40
pF
k
V
s